package com.test.containerNotSafe;

import java.util.*;
import java.util.concurrent.CopyOnWriteArrayList;

/**
 * 验证Vector线程安全
 *
 * @author wangjie
 * @version V1.0
 * @date 2019/12/17
 */
public class ContainerSafe {
    public static void main(String[] args) {

//        List<String> list = new Vector<>();
//        List<String> list = Collections.synchronizedList(new ArrayList<>());
        List<String> list = new CopyOnWriteArrayList<>();

        for(int i = 0; i < 30 ; i++){
            new Thread(() ->{
                list.add(UUID.randomUUID().toString().substring(0,8));
                System.out.println(list);
            },i+"").start();
        }
    }
}

